I'm looking for a certain part of a1975 ford courier p/u;the wiring harness thats on the steering colume.?

this wiring harness has a smallarm switch that turns on the headlights and the other longer arm works the wiper,lo&hi beams.the harness is on a bracket that wraps around the colume shaft.removing the steering wheel frist then a bolt that clamps on the shaft then removes the whole piece called the harness .the harness has 4 plugs of wiring that can un-plug.